Packing.



N. B. MILLER.

PACKING.

APPLICATION FILED APR. 5, 1909.

Patented June 15, 1909.

WITNESSES:

, UNITED STATES PATENT onrios.

NORMAN BRUCE MILLER, OF PHILADELPHIA, PENNSYLVANIA, ASSIGNOR TO CLEMENT RESTEIN COMPANY, A CORPORATION OF PENNSYLVANIA.

PACKING.

T 0 all whom it may concern:

Be it known that I, NORMAN BRUCE MIL- LER, a citizen of the United States, residing at the cit of Philadelphia, in the county of Philadelp ia and State of Pennsylvania, have invented certain new and useful Improvements in Packing, of which the following is a specification.

The object of the invention is to provide a packing for stuffing boxes and the like which shall be resilient, equally compressible or resistant in all directions and not too yielding or soft.

To this and other ends hereinafter vset forth the invention comprises a packing rectangular in cross section and haying a hollow core circular in cross section arranged axially of the acking and extending throughout -the length thereof and it also comprises the improvements which will be presently described and finally claimed.

The drawings illustrate a perspective view, partly in section, of a piece of packing emodying features of the invention.

In the drawings the packing 1, is square in cross-section, or otherwise stated, the pack- Specification of Letters Patent. Application filed April 5, 1909. Serial No. 487,840.

Patented June 15, 1909.

and this is obviously a matter of importance when the packing is in use because it renders it not too yielding while at the same time sufficiently resilient.

In use the packing is placed as a ring in a gland or stuffing box and when compressed it bulges. outward laterally by reason of the circular form of the o ening 2, and this is the proper manner in w ich a acking should operate in a stuffing box. he presence of the circular opening, while producing thisv outward bulging under pressure, also imparts to the packing the necessary resilience.

The packing may be composed of layers of' fabric and rubber or cement and it can be made by rolling the fabric upon a cylindrical rod and compressing the exterior of the roll into generally rectangular form whereupon the rod may be withdrawn.

What I claim is:

A packing consisting of layers of fabric cemented together and being of rectangular external form and having a hollow unobstructed core of circular cross section extending axially throughout the packingand in the i NORMAN Bianca MILLER.

In presence of- CLIFFORD K. CAssEL, FRANK E. FRENCH.

stantially as de- 

